restrain
     v 1: keep under control; keep in check; "suppress a smile"; "Keep
          your temper"; "keep your cool" [syn: {suppress}, {keep},
           {keep back}, {hold back}]
     2: place limits on (extent or access); "restrict the use of
        this parking lot"; "limit the time you can spend with your
        friends" [syn: {restrict}, {trammel}, {limit}, {bound}, {confine},
         {throttle}]
     3: to close within bounds, limit or hold back from movement;
        "This holds the local until the express passengers change
        trains"; "About a dozen animals were held inside the
        stockade"; "The illegal immigrants were held at a
        detention center"; "The terrorists held the journalists
        for ransom" [syn: {confine}, {hold}]
     4: hold back [syn: {encumber}, {cumber}, {constrain}]
     5: to compel or deter by or as if by threats [syn: {intimidate}]
Source: WordNet® 2.0